The tower, built in 1988, is Seattle's third-tallest building. It's not to be confused with the nearby 42-story former Washington Mutual Center, now called the Russell Investments Center, which sold earlier this year for $480 million.

The building's owner is a partnership of tower builder Wright Runstad, Shorenstein Properties of San Francisco and Beacon Capital Partners of Boston. Brokerage Eastdil Secured is marketing the building, The Times said.